| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| Turk Egitim Dernegi (TED) | NGO Local | Not Applicable | Türkiye | 2006-07-11 |
| Aksa Akrilik Kimya Sanayi A.S. | Company | Chemicals | Türkiye | 2006-06-19 |
| Habitat Association | NGO Local | Not Applicable | Türkiye | 2006-06-13 |
| Corporate Social Responsibilty Association of Turkey | NGO Local | Not Applicable | Türkiye | 2006-06-12 |
| Corporate Governance Association of Turkey | NGO Local | Not Applicable | Türkiye | 2006-06-05 |
| Eczacibasi Holding Co. | Company | General Industrials | Türkiye | 2006-05-26 |
| Koc Holding | Company | General Industrials | Türkiye | 2006-04-05 |
| Akfen Holding Co. Inc. | Company | General Industrials | Türkiye | 2002-07-02 |
| ARGE Consulting | Small or Medium-sized Enterprise | Support Services | Türkiye | 2002-05-29 |
| Turkish Society for Quality | Business Association Local | Not Applicable | Türkiye | 2002-05-29 |